WP Energy Partners (E&P) (Brigham), LLC

Row 1 · Balance 0

F1: This Form 3 is filed on behalf of certain affiliates of Warburg Pincus & Company US, LLC ("Warburg Pincus US"), including: Warburg Pincus Private Equity (E&P) XI-A (Brigham), LLC, a Delaware limited liability company ("WPPE E&P XI-A Brigham"), Warburg Pincus XI (E&P) Partners-A (Brigham), LLC, a Delaware limited liability company ("WP XI E&P Partners-A Brigham"), Warburg Pincus Private Equity (E&P) XI (Brigham), LLC, a Delaware limited liability company ("WPPE E&P XI Brigham"), Warburg Pincus XI (E&P) Partners-B (Brigham), LLC, a Delaware limited liability company ("WP XI E&P Partners-B Brigham"), WP Brigham Holdings, L.P., a Delaware limited partnership ("WP Brigham Holdings"), Warburg Pincus Energy (E&P)-A (Brigham), LLC, a Delaware limited liability company ("WPE E&P-A Brigham"), Warburg Pincus Energy (E&P) Partners-A (Brigham), LLC, a Delaware limited liability company ("WPE E&P Partners-A Brigham"),

F2: (Continued from footnote 1) Warburg Pincus Energy (E&P) (Brigham), LLC, a Delaware limited liability company ("WPE E&P Brigham"), Warburg Pincus Energy (E&P) Partners-B (Brigham), LLC, a Delaware limited liability company ("WPE E&P Partners-B Brigham"), WP Energy Partners (E&P) (Brigham), LLC, a Delaware limited liability company ("WPE Partners E&P Brigham"), WP Energy Brigham Holdings, L.P., a Delaware limited partnership ("WPE Brigham Holdings"), and WP Energy Partners Brigham Holdings, L.P., a Delaware limited partnership ("WPE Partners Brigham Holdings"). Warburg Pincus Private Equity (E&P) XI-A, L.P., a Delaware limited partnership ("WPPE E&P XI-A"), is the sole member of WPPE E&P XI-A Brigham. Warburg Pincus XI (E&P) Partners - A, L.P., a Delaware limited partnership ("WP XI E&P Partners-A"), is the sole member of WP XI E&P Partners-A Brigham. Warburg Pincus Energy (E&P)-A, L.P., a Delaware limited partnership ("WPE E&P-A"), is the sole and managing member of WPE E&P-A Brigham.

F3: (Continued from footnote 2) Warburg Pincus Energy (E&P) Partners-A, L.P., a Delaware limited partnership ("WPE E&P Partners-A"), is the sole and managing member of WPE E&P Partners-A Brigham. Warburg Pincus Private Equity (E&P) XI - B, L.P., a Delaware limited partnership, is the managing member of WPPE E&P XI Brigham. Warburg Pincus XI (E&P) Partners - B, L.P., a Delaware limited partnership, is the sole member of WP XI E&P Partners-B Brigham. Warburg Pincus Energy (E&P)-B, L.P., a Delaware limited partnership, is the managing member WPE E&P Brigham. Warburg Pincus Energy (E&P) Partners-B, L.P., a Delaware limited partnership, is the managing member of WPE E&P Partners-B Brigham. WP Energy Partners, L.P., a Delaware limited partnership, is the managing member of WPE Partners E&P Brigham.

F4: (Continued from footnote 3) Warburg Pincus (E&P) XI, L.P., a Delaware limited partnership ("WP XI E&P GP"), is the (i) general partner of each of WP Brigham Holdings, WPPE E&P XI-A, WP XI E&P Partners-A and Brigham Parent Holdings. Warburg Pincus (E&P) XI LLC, a Delaware limited liability company ("WP XI E&P LLC"), is the general partner of WP XI E&P GP. Warburg Pincus Partners (E&P) XI LLC, a Delaware limited liability company ("WP Partners E&P XI LLC"), is the sole member of WP XI E&P LLC. Warburg Pincus Partners II (US), L.P., a Delaware limited partnership ("WPP II US"), is the managing member of WP Partners E&P XI LLC. Warburg Pincus US is the general partner of WPP II US. Warburg Pincus (E&P) Energy GP, L.P., a Delaware limited partnership ("WPE E&P GP"), is the general partner of each of WPE Brigham Holdings, WPE Partners Brigham Holdings, WPE E&P-A, WP Energy Partners, L.P. and WPE E&P Partners-A.

F5: (Continued from footnote 4) WP Global LLC, a Delaware limited liability company ("WP Global"), is the general partner of WPE E&P GP. Warburg Pincus Partners II, L.P., a Delaware limited partnership, is the managing member of WP Global. Warburg Pincus Partners GP LLC, a Delaware limited liability company, is the general partner of Warburg Pincus Partners II, L.P. Warburg Pincus & Co., a Delaware corporation, is the managing member of Warburg Pincus Partners GP LLC.

F6: Continued from footnote 5) Warburg Pincus (E&P) Energy LLC, a Delaware limited liability company ("WPE E&P LLC," and together with WP XI E&P GP, WP XI E&P LLC, WP Partners E&P XI LLC, WPE E&P GP, WPP II US and Warburg Pincus US, the "Warburg Pincus GP Entities"), is the general partner of WPE E&P GP. WPP II US is the managing member of WPE E&P LLC. As noted above, Warburg Pincus US is the general partner of WPP II US. Warburg Pincus LLC, a New York limited liability company ("Warburg Pincus") is the manager of each of WP Brigham Holdings, WPPE E&P XI-A, WP XI E&P Partners-A, WPE Brigham Holdings, WPE Partners Brigham Holdings, WPE E&P-A and WPE E&P Partners-A. Charles R. Kaye and Joseph P. Landy are the Managing Members of Warburg Pincus US and the Managing Members and Co-Chief Executive Officers of Warburg Pincus and, as such, may be deemed to control each of the foregoing entities.